Radiant|Natural|GIA

1.51ct G SI1 Radiant Natural Diamond

EX • G/SI1 • GIA 5566006502

Certificate GIA 5566006502

Diamond specifications and retailer prices

From $9,070 CAD
$6,493 USD
As of October 25, 2026
Save $5,949 CAD (40%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $17,928 CAD at NZ Jewellers · As of October 21, 2026
View at NZ Jewellers

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5566006502. Listed at 16 retailers as of October 25, 2026, with a 66% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
G
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.91°
OriginNatural
Grading LabGIA
CertificateGIA 5566006502
Dimensions7.85 × 5.79 × 3.86 mm
L/W Ratio1.36
Culet sizeNone
Key to symbols
Feather, Crystal, Needle
Top View
7.85 mm5.79 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5566006502
Side View
Table 67.0%Crown 47.91°GirdlePavilionCulet: NoneDepth 66.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 25
Current: $17,928 CAD|Low: $9,070 CAD|High: $18,637 CAD|Avg: $11,588 CAD|-3.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
October 31, 2026
Retailer 3$9,070 CAD
Retailer 6$9,348 CAD
Retailer 13$9,890 CAD
Retailer 5$9,893 CAD
Retailer 2$10,022 CAD
Retailer 10$10,131 CAD
Retailer 8$10,285 CAD
Retailer 16$10,335 CAD
Retailer 7$10,718 CAD
Retailer 15$10,883 CAD
Retailer 14$10,948 CAD
Retailer 9$11,713 CAD
Retailer 4$12,368 CAD
Retailer 12$13,053 CAD
Retailer 11$15,019 CAD
NZ Jewellers$17,928 CAD

24 data points across 16 retailers

16 retailers$9,070 CAD to $15,019 CAD

A
Cheapest Retailer
-
$9,070 CAD
$6,493 USD
A
Retailer 2
-
$9,348 CAD
$6,692 USD
View
B+
Retailer 3
-
$9,890 CAD
$7,080 USD
View
B+
Retailer 4
-
$9,893 CAD
$7,082 USD
View
Final sale: no returns
B+
Retailer 5
-
$10,022 CAD
£5,649 GBP
View
B+
Retailer 6
-
$10,131 CAD
£5,710 GBP
View
Retailer 7
-
$10,285 CAD
$7,363 USD
View
Price last confirmed 16 days ago
Retailer 8
-
$10,335 CAD
A$11,382 AUD
View
Price last confirmed 10 days ago
Retailer 9
-
$10,718 CAD
$7,673 USD
View
Price last confirmed 10 days ago
Retailer 10
-
$10,883 CAD
$7,791 USD
View
Price last confirmed 10 days ago
B+
Retailer 11
-
$10,948 CAD
$7,837 USD
View
B+
Retailer 12
-
$11,713 CAD
€7,986 EUR
View
Retailer 13
-
$12,368 CAD
$8,854 USD
View
Price last confirmed 11 days ago
B+
Retailer 14
-
$13,053 CAD
ZAR 150,956 ZAR
View
B
Retailer 15
-
$15,019 CAD
£8,466 GBP
View
Most Expensive
NZ Jewellers
6fae2622-e45e-4ac6-8d72-ae0669f0c512 · Oct 21
$17,928 CAD
$12,834 USD
View
Price last confirmed 11 days ago
15 more retailers have this diamond
Prices start from $9,070 CADSave up to $5,949 CAD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.51ct Radiant
$9,070 CAD